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anonymous

  • 5 years ago

im tryin to figure out to work out a/20=3/15 Im not understandin the a portion

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  1. anonymous
    • 5 years ago
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    use cross products. multiply the top of one by the bottom of teh other, and vice versa, and set them equal: so 15a=20*3 15a=60 a=4

  2. anonymous
    • 5 years ago
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    Thx alot ymc1128

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